Johnson, Mirmiran & Thompson

What Johnson, Mirmiran & Thompson does

Johnson, Mirmiran & Thompson (JMT) is a 100% employee-owned engineering, architecture, environmental, and technology consulting firm headquartered in Hunt Valley, Maryland, operating across 57 office locations in 16+ states and Washington D.C. Founded in 1971 and employee-owned since 1999, JMT provides planning, design, architecture, engineering, and construction-related services to federal, state, and local government agencies, public transit authorities, school districts, and select private developers. Its work is organized around three core business lines — Transportation (#14 on ENR Top 20 Transportation Design Firms), Buildings and Facilities (significantly expanded through the May 2025 Clark Nexsen merger), and Water, Energy, and Environment (#140 on ENR Top 200 Environmental Firms) — supported by JMT Architecture, JMT Technology Group, and the retained Clark Nexsen brand. Notable project work spans multi-modal transit centers (Claymont Regional Transportation Center, $91M), coastal resilience infrastructure (Charleston Low Battery Seawall, $64M), K-12 modernization (Towson High School, $288M), express toll lane design, stormwater/flood detention, and federal aviation facilities.

The firm generates revenue through project-based professional services contracts, typically billed on time-and-materials or fixed-fee terms, won via competitive bidding, RFP responses, and direct enterprise sales relationships with government procurement officials. Pricing is quote-based and project-specific with no public tiers. The go-to-market motion is enterprise field sales targeting public infrastructure owners, with distribution reinforced by a dense regional office network that supports local relationships and on-the-ground project delivery. Technology stack centers on industry-standard AEC digital tools — Building Information Modeling (BIM), GIS, hydraulic and structural analysis — augmented by domain-specialized methods such as Glass Fiber Reinforced Polymer reinforcement and micropile foundation systems. Combined post-merger headcount exceeds 2,850, and the firm holds ISO 9001 certification with WCAG 2.2 / ADA Title II digital accessibility compliance. The ESOP structure, with no individual owning more than 1% and no outside investors, gives JMT a federal-income-tax-free operating posture and supports retention in a competitive AEC talent market.

Name

Johnson, Mirmiran & Thompson

Legal name

Johnson, Mirmiran & Thompson, Inc.

Website

https://jmt.com

Company type

Private

Founded year

1971

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

JMT is a 100% employee-owned engineering, architecture, environmental, and technology consulting firm serving federal, state, and local government clients across 16+ U.S. states from 57 offices. Founded in 1971 and ESOP-held since 1999, it delivers transportation, buildings, and water/environmental infrastructure projects post the 2025 Clark Nexsen merger.

Ownership category

akta.pro rank

Headquarters

HQ city

Hunt Valley

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Engineering Consulting Services: Professional engineering services including transportation design, structural engineering, civil engineering, and infrastructure planning. Revenue is generated through project-based contracts with government agencies and private clients, typically billed on time and materials or fixed-fee basis.
2. Architecture Services: Architectural design services for buildings, facilities, and educational institutions. Provided through JMT Architecture brand and expanded through the Clark Nexsen merger.
3. Environmental Services: Environmental consulting, ecological restoration, water resources, stormwater management, and natural and cultural resources services.
4. Technology Solutions: Technology consulting services provided through JMT Technology Group brand, supporting digital innovation and technology-driven solutions for clients.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

JMT is a 100% employee-owned engineering, architecture, environmental, and technology consulting firm that delivers planning, design, and construction management services for transportation infrastructure, buildings and facilities, and water/environmental projects. The firm serves federal, state, and local government agencies, educational institutions, and private developers through project-based contracts. Following the May 2025 merger with Clark Nexsen, JMT operates as an integrated platform with 2,850+ professionals across 57 offices.

Product overview

JMT is a 100-percent employee-owned engineering and architecture firm offering a comprehensive suite of infrastructure services. The company operates as a unified platform with three specialized sub-brands: the core JMT brand handles engineering, environmental, and technology solutions; JMT Architecture provides architectural design services; and JMT Technology Group delivers technology consulting. Following a May 2025 merger, Clark Nexsen joined as an acquired brand, adding depth in architecture, facilities engineering, and transportation, with combined operations spanning over 2,850 employees across 57 office locations.

Differentiator

Problem solved

Functional benefit

Brands

• JMT Technology Group: Technology services brand under JMT
• JMT Architecture
• Clark Nexsen

Products and services

• Transportation Engineering Services Full-service transportation engineering including highway design, bridge engineering, toll facilities, traffic engineering, express toll lanes, and multi-modal transportation solutions for federal, state, and local government clients.
• Architecture and Buildings Services Architectural design, facilities engineering, and site design services for educational institutions, federal facilities, commercial buildings, and infrastructure projects, delivered through the JMT Architecture brand.
• Water, Energy and Environment Services Comprehensive environmental and water resources consulting including water/wastewater engineering, stormwater management, flood control, ecological restoration, coastal resilience, and natural and cultural resources services for government agencies and private clients.
• Technology Consulting Services Technology consulting and digital innovation services provided through the JMT Technology Group brand, supporting digital transformation and technology-driven solutions for infrastructure and engineering clients.
• Construction Management Services Program management, construction management, and owner's representation services for infrastructure, building, and aviation projects, exemplified by the Advanced Manufacturing District at El Paso International Airport and other complex capital programs.
• Clark Nexsen Architecture and Engineering Services Fully integrated architecture and engineering services offered by Clark Nexsen, providing expertise in architecture, facilities engineering, transportation, and education and federal market sectors across the southeastern United States.

Quantifiable outcome

• Ranked #45 on ENR Top 500 Design Firms (2026), up from #50 in 2025 - highest position to date
• +6 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Clark NexsencoreStrategic or Co-development Partner · 21 May 2025Transformative merger combining JMT and Clark Nexsen in May 2025, creating an employee-owned industry leader in planning, design, architecture, engineering, and construction. Clark Nexsen staff joined JMT's 100-percent employee-owned structure. The merger created a firm of more than 2,750 employees, strengthening architecture and engineering practices in Mid-Atlantic and Southeast U.S. Clark Nexsen adds depth in architecture, facilities engineering, transportation, and federal and education market sectors.
• Civil Consulting Group (CCG)coreStrategic or Co-development Partner · 17 November 2022Acquisition of Civil Consulting Group, a consulting firm based in McKinney, Texas, by JMT. The acquisition enhanced JMT's transportation design capabilities in Texas and expanded its service offerings in the Southwest region.
• Wagman Heavy CivilminorImplementation/ SI/ Consulting PartnerDesign-build team partner for Claymont Regional Transportation Center project. Wagman served as heavy civil contractor on the $91 million multi-modal transportation facility.
• AmtrakminorStrategic or Co-development PartnerRailway operator whose communications infrastructure required coordination and duct bank relocation during Claymont Regional Transportation Center design and construction.
• SEPTAminorStrategic or Co-development PartnerSoutheastern Pennsylvania Transportation Authority provides rail service to Claymont area. JMT coordinated with SEPTA on new transportation center design.
• Toole Recreation PlanningminorImplementation/ SI/ Consulting PartnerJMT worked as subconsultant to Toole Recreation Planning on Delco Woods master plan. Toole led public outreach efforts while JMT developed the preservation and recreation master plan.
• Natural LandsminorImplementation/ SI/ Consulting PartnerProject partner providing ecological and natural resources services for Delco Woods Preservation and Recreation Project in Delaware County, PA.
• SGL Constructors (Skanska, Granite Construction, Lane Construction)minorImplementation/ SI/ Consulting PartnerDesign-build team that originally contracted to build the Maitland pedestrian bridge in Florida. Called upon JMT to redesign the bridge's substructure when the original arch design was abandoned for a more risk-averse truss design.
• Florida Department of Transportation (FDOT)minorStrategic or Co-development PartnerFDOT requested redesign of Maitland pedestrian bridge after concerns arose about the original arch design. JMT served as engineer of record for the redesigned truss bridge.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• WSP USA: One of the largest global professional services firms with deep U.S. transportation, water, and environment practices. Competes with JMT for state DOT, federal, and municipal infrastructure work but at materially larger scale and global footprint.
• Jacobs Solutions: Global engineering, architecture, and technical services leader competing across JMT's transportation, water, environment, and federal verticals. Far larger but relevant comparable for ENR Top 500 positioning and prime-contract competition.
• Stantec: Canadian-headquartered global design and consulting firm with strong U.S. presence in water, environment, transportation, and buildings. Directly comparable multi-disciplinary platform competing for similar government and infrastructure mandates.
• Tetra Tech: Specialized consulting and engineering firm with leading water, environment, and federal services practices. Closely comparable to JMT's Water/Energy/Environment business unit in client base and project types.
• Burns & McDonnell: 100% employee-owned engineering, architecture, and consulting firm with strong transportation, environmental, and federal practices. Comparable ESOP model and competing for similar infrastructure and federal mandates.
• AECOM: Global infrastructure consulting leader across transportation, water, environment, and buildings. Competes with JMT primarily on large federal and state DOT mega-programs where AECOM's scale and self-perform capacity are decisive.

Direct peers

• HDR: Employee-owned A/E firm (also 100% ESOP) with strong transportation, water, and architecture practices competing for the same state DOT and federal contracts as JMT. Highly comparable ownership model, scale, and service mix—arguably JMT's closest pure-play peer.
• Kimley-Horn: Employee-owned planning, engineering, and design consulting firm operating across similar transportation, land development, and environmental verticals. Closely matches JMT on ownership structure, professional services model, and government client base.
• TranSystems: Employee-owned transportation-focused engineering and architecture firm. Directly competes with JMT's #14-ranked Transportation practice for state DOT, transit authority, and rail projects in overlapping Mid-Atlantic and Midwest geographies.
• Gannett Fleming: Employee-owned infrastructure firm with strong transportation, water, and federal practices in the Mid-Atlantic and Southeast. Closely comparable to JMT in ownership structure, services mix, and geographic footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key highlights6 records

Customer concentration

• Xx.com/JMT_Inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A3 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Johnson, Mirmiran & Thompson